Taking the emergency contraceptive pill may lead to ectopic pregnancy. The common ingredient in the emergency contraceptive pill is levonorgestrel, which stops or delays the release of the egg cell, thus achieving the purpose of emergency contraception. However, if the emergency contraceptive pill is taken after ovulation, there is a risk that the egg will unite with sperm to form a fertilized egg and thus the contraceptive will fail, while the fertilized egg will implant outside the uterine cavity, resulting in ectopic pregnancy. In addition, if you have sex without contraception after taking the pill, there is also a risk that the pill may not prevent ovulation due to its reduced effectiveness, and that the sperm-egg union may result in conception and ectopic pregnancy due to abnormal fertilization of the fertilized egg. Because of the high risk of ectopic pregnancy, timely treatment should be carried out after diagnosis, and usually medication and surgery can be applied: 1. medication: for patients in good general condition, if the condition is stable, no contraindication to medication and no obvious internal bleeding, medication can be applied, and methotrexate is usually preferred to cause necrosis, shedding and absorption of embryonic tissues; 2. surgery: depending on whether to preserve 2.Surgical treatment: according to whether the affected fallopian tube is preserved and whether there is a need for fertility, it is divided into conservative treatment and radical treatment. For young women with fertility needs, conservative treatment can be performed through tubal ostomy and tubal incision. In contrast, for patients who have developed massive abdominal bleeding, radical treatment through tubectomy is required to control the progression.